XML 39 R29.htm IDEA: XBRL DOCUMENT v3.8.0.1

Leases (Narrative) (Detail) $ in Millions	1 Months Ended
	Sep. 30, 2017 USD ($)
Operating and Capital Leases [Line Items]
Operating lease future minimum lease payments	$ 8.8
Minimum [Member]
Operating and Capital Leases [Line Items]
Operating lease recognition period	Aug. 30, 2017
Maximum [Member]
Operating and Capital Leases [Line Items]
Operating lease recognition period	Feb. 27, 2026

X

- References

No definition available.

+ Details

Name:	med_OperatingAndCapitalLeasesLineItems
Namespace Prefix:	med_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Operating lease recognition period

+ References

No definition available.

+ Details

Name:	med_OperatingLeaseRecognitionPeriod
Namespace Prefix:	med_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
-Paragraph 40
-Subparagraph (Note 3)
-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717

+ Details

Name:	us-gaap_OperatingLeasesFutureMinimumPaymentsDue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: